Document Detail


Far-field R wave sensing causing prolongation of the atrial escape interval of DDD pacemakers with atrial-based lower rate timing.
MedLine Citation:
PMID:  14622327     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This report describes the occurrence of prolonged atrial escape intervals (AEI) initiated by sensing of ventricular premature complexes (VPC) without a preceding atrial depolarization or an AV delay in two patients with DDD pacemakers with an atrial-based lower rate response. The prolonged AEIs were due to ventriculoatrial cross-talk so that atrial sensing of the far-field R wave of the VPCs occurred before detection of the R wave by the ventricular channel as a near-field signal. Early atrial sensing of the far-field R wave was promoted by a high atrial sensitivity and/or low ventricular sensitivity and was eliminated by reducing atrial sensitivity and/or increasing ventricular sensitivity. This manifestation of far-field sensing should not be interpreted as malfunction of dual chamber pacemakers with atrial-based lower rate timing.
Authors:
S Serge Barold
Related Documents :
1053587 - Termination of atrial flutter and atrial tachycardia with rapid atrial stimulation.
19363807 - A new dynamic 3d virtual methodology for teaching the mechanics of atrial septation as ...
11228857 - Bipolar atrial sensing thresholds in sinus rhythm and atrial tachyarrhythmias. a compar...
2054247 - Successful intracardiac electrical conversion of atrial flutter in patients with comple...
19178387 - A comparative study of cardiac dysautonomia in autosomal dominant spinocerebellar ataxi...
15747157 - Extension of myocardial necrosis differently affects mibg retention in heart failure ca...
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  26     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2003-11-19     Completed Date:  2004-03-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2188-91     Citation Subset:  IM    
Affiliation:
Tampa General Hospital, Tampa, Florida, USA. ssbarold@aol.com
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Cardiac Pacing, Artificial / methods*
Electrocardiography
Heart Block / physiopathology,  therapy*
Humans
Sick Sinus Syndrome / physiopathology,  therapy*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Use of intracardiac echocardiography in guiding radiofrequency catheter ablation of atrial tachycard...
Next Document:  Complete atrioventricular block induced by alcohol abuse.